Cross-domain communication gateway and system for water surface and underwater

The utility model provides a cross-domain communication gateway and system for water surface and underwater, and the cross-domain communication gateway comprises a main control cabin which is internally provided with a main control board for processing communication data; the water surface load access cabin is located at the upper end of the main control cabin, and a water surface load connected with the main control board is arranged in the water surface load access cabin; and the underwater load access cabin is located at the lower end of the main control cabin, and an underwater acoustic transducer connected with the main control board is arranged in the underwater load access cabin. Through an embedded structure and fusion of various communication means, water surface and underwater cross-domain communication is realized, and under the conditions that the underwater network bandwidth is limited and the link stability is insufficient, the underwater networking consumption is reduced by moving the networkin